It enables to monitor sound from the line output on AV devices that do not have a headphone jack, using headphones. Sound quality-oriented design. Maximum output of 300mW + 300mW.
FOSTEX HP-A3mk2 is a USB DAC that operates on USB bus power. It converts the PC's USB audio and optical digital audio signals into analog signals, which can be output from the line output terminal and headphone output terminal. You can connect the USB cable and use it immediately with simple settings.
Nu:tekt HA-S is a DIY kit that allows you to create your own high quality headphone amplifier with Nutube. No soldering required, so even beginners can easily do it. You can assemble it right away and enjoy your favorite music with high quality.